AlmaLinux 9 : gnutls (ALSA-2026:20612)

critical Nessus Plugin ID 324818

Synopsis

The remote AlmaLinux host is missing one or more security updates.

Description

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:20612 advisory.

* gnutls: Fix qsort comparator in DTLS reassembly (CVE-2026-42009)
* gnutls: Fix crashing on an underflow with a DTLS datagram


(CVE-2026-33845)

* gnutls: Fix RSA-PSK identity truncation (CVE-2026-42010)
* gnutls: Fix case-sensitivity of domain name comparison in name


constraints (CVE-2026-3833)

* gnutls: Fix intersecting empty name constraints (CVE-2026-42011)
* gnutls: Denial of Service via heap buffer overflow in DTLS handshake


fragment reassembly (CVE-2026-33846)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://access.redhat.com/errata/RHSA-2026:20612

https://errata.almalinux.org/9/ALSA-2026-20612.html

Plugin Details

Severity: Critical

ID: 324818

File Name: alma_linux_ALSA-2026-20612.nasl

Version: 1.1

Type: Local

Published: 7/2/2026

Updated: 7/2/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.88

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-42010

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:alma:linux:9::highavailability, cpe:/o:alma:linux:9::resilientstorage, p-cpe:/a:alma:linux:gnutls-utils, p-cpe:/a:alma:linux:gnutls-c%2b%2b, cpe:/o:alma:linux:9::appstream, cpe:/o:alma:linux:9::realtime, cpe:/o:alma:linux:9, p-cpe:/a:alma:linux:gnutls-dane, cpe:/o:alma:linux:9::sap_hana, cpe:/o:alma:linux:9::supplementary, p-cpe:/a:alma:linux:gnutls-devel, cpe:/o:alma:linux:9::sap, p-cpe:/a:alma:linux:gnutls, cpe:/o:alma:linux:9::crb, cpe:/o:alma:linux:9::nfv, cpe:/o:alma:linux:9::baseos

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/26/2026

Vulnerability Publication Date: 4/30/2026

Reference Information

CVE: CVE-2026-33845, CVE-2026-33846, CVE-2026-3832, CVE-2026-3833, CVE-2026-42009, CVE-2026-42010, CVE-2026-42011, CVE-2026-42012, CVE-2026-42013, CVE-2026-42014, CVE-2026-42015, CVE-2026-5260, CVE-2026-5419

CWE: 1284, 130, 178, 179, 191, 193, 208, 295, 475

RHSA: 2026:20612